Abstract
This paper experimentally investigates the performance of different modulation schemes under the atmospheric turbulence conditions for free space optical communication links. The experiments were carried out in a dedicated and controlled indoor atmospheric chamber. The turbulence environment was created by introducing hot air, while the temperature profile was monitored throughout the chamber to maintain a constant environment. By evaluating the error performance of different modulation schemes under identical conditions, it was observed that pulse position modulation offers the best performance, followed by subcarrier intensity modulation under weak turbulence environments.
Original language | English |
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Article number | 6980097 |
Pages (from-to) | 244-250 |
Number of pages | 7 |
Journal | Journal of Lightwave Technology |
Volume | 33 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Keywords
- bit error rate
- Free space optics
- modulation schemes
- turbulence